package io.confluent.util;
import java.util.*;

import io.confluent.kafka.consumer.conf.PropertiesReader;
import io.confluent.kafka.consumer.entities.CurrentAlarmBean;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.conn.ssl.X509HostnameVerifier;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.codehaus.jackson.map.ObjectMapper;
import scala.util.parsing.json.JSONObject;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.security.GeneralSecurityException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

/**
 * Created by taotao on 2017/12/19.
 */
public class HttpUtil {
    private static PoolingHttpClientConnectionManager connMgr;
    private static RequestConfig requestConfig;
    private static final int MAX_TIMEOUT = 8000;

    static {
        // 设置连接池
        connMgr = new PoolingHttpClientConnectionManager();
        // 设置连接池大小
        connMgr.setMaxTotal(10);
        connMgr.setDefaultMaxPerRoute(connMgr.getMaxTotal());

        RequestConfig.Builder configBuilder = RequestConfig.custom();
        // 设置连接超时
        configBuilder.setConnectTimeout(MAX_TIMEOUT);
        // 设置读取超时
        configBuilder.setSocketTimeout(MAX_TIMEOUT);
        // 设置从连接池获取连接实例的超时
        configBuilder.setConnectionRequestTimeout(MAX_TIMEOUT);
        // 在提交请求之前 测试连接是否可用
        configBuilder.setStaleConnectionCheckEnabled(true);
        requestConfig = configBuilder.build();
    }

    /**
     * 发送 GET 请求（HTTP），不带输入数据
     *
     * @param url
     * @return
     */
    public static String doGet(String url) {
        return doGet(url, new HashMap<String, Object>());
    }

    /**
     * 发送 GET 请求（HTTP），K-V形式
     *
     * @param url
     * @param params
     * @return
     */
    public static String doGet(String url, Map<String, Object> params) {
        String apiUrl = url;
        StringBuffer param = new StringBuffer();
        int i = 0;
        for (String key : params.keySet()) {
            if (i == 0)
                param.append("?");
            else
                param.append("&");
            param.append(key).append("=").append(params.get(key));
            i++;
        }
        apiUrl += param;
        String result = null;
        HttpClient httpclient = new DefaultHttpClient();
        try {
            HttpGet httpPost = new HttpGet(apiUrl);
            HttpResponse response = httpclient.execute(httpPost);
            int statusCode = response.getStatusLine().getStatusCode();

            System.out.println("执行状态码 : " + statusCode);

            HttpEntity entity = response.getEntity();
            if (entity != null) {
                InputStream instream = entity.getContent();
                result = IOUtils.toString(instream, "UTF-8");
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }

    /**
     * 发送 POST 请求（HTTP），不带输入数据
     *
     * @param apiUrl
     * @return
     */
    public static String doPost(String apiUrl) {
        return doPost(apiUrl, new HashMap<String, Object>());
    }

    /**
     * 发送 POST 请求（HTTP），K-V形式
     *
     * @param apiUrl API接口URL
     * @param params 参数map
     * @return
     */
    public static String doPost(String apiUrl, Map<String, Object> params) {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        String httpStr = null;
        HttpPost httpPost = new HttpPost(apiUrl);
        CloseableHttpResponse response = null;

        try {
            httpPost.setConfig(requestConfig);
            List<NameValuePair> pairList = new ArrayList<>(params.size());
            for (Map.Entry<String, Object> entry : params.entrySet()) {
                NameValuePair pair = new BasicNameValuePair(entry.getKey(), entry
                        .getValue().toString());
                pairList.add(pair);
            }
            httpPost.setEntity(new UrlEncodedFormEntity(pairList, Charset.forName("UTF-8")));
            response = httpClient.execute(httpPost);
            System.out.println(response.toString());
            HttpEntity entity = response.getEntity();
            httpStr = EntityUtils.toString(entity, "UTF-8");
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (response != null) {
                try {
                    EntityUtils.consume(response.getEntity());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return httpStr;
    }

    /**
     * 发送 POST 请求（HTTP），JSON形式
     *
     * @param apiUrl
     * @param json   json对象
     * @return
     */
    public static String doPost(String apiUrl, Object json) {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        String httpStr = null;
        HttpPost httpPost = new HttpPost(apiUrl);
        CloseableHttpResponse response = null;

        try {
            httpPost.setConfig(requestConfig);
            StringEntity stringEntity = new StringEntity(json.toString(), "UTF-8");//解决中文乱码问题
            stringEntity.setContentEncoding("UTF-8");
            stringEntity.setContentType("application/json");
            httpPost.setEntity(stringEntity);
            response = httpClient.execute(httpPost);
            HttpEntity entity = response.getEntity();
            System.out.println(response.getStatusLine().getStatusCode());
            httpStr = EntityUtils.toString(entity, "UTF-8");
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (response != null) {
                try {
                    EntityUtils.consume(response.getEntity());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return httpStr;
    }

    /**
     * 发送 POST 请求（HTTP），JSON字符串
     *
     * @param apiUrl
     * @param jsons   json字符串
     * @return
     */
    public static int doPost(String apiUrl, String jsons) {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        int resultCode = 0;
        HttpPost httpPost = new HttpPost(apiUrl);
        CloseableHttpResponse response = null;

        try {
            httpPost.setConfig(requestConfig);
            StringEntity stringEntity = new StringEntity(jsons, "UTF-8");//解决中文乱码问题
            stringEntity.setContentEncoding("UTF-8");
            stringEntity.setContentType("application/json");
            httpPost.setEntity(stringEntity);
            response = httpClient.execute(httpPost);
            resultCode = response.getStatusLine().getStatusCode();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (response != null) {
                try {
                    EntityUtils.consume(response.getEntity());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        if ("true".equals(PropertiesReader.DEBUG)) {
            System.out.println("执行结果：" + resultCode );
        }
        return resultCode;
    }

    /**
     * 发送 SSL POST 请求（HTTPS），K-V形式
     *
     * @param apiUrl API接口URL
     * @param params 参数map
     * @return
     */
    public static String doPostSSL(String apiUrl, Map<String, Object> params) {
        CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(createSSLConnSocketFactory()).setConnectionManager(connMgr).setDefaultRequestConfig(requestConfig).build();
        HttpPost httpPost = new HttpPost(apiUrl);
        CloseableHttpResponse response = null;
        String httpStr = null;

        try {
            httpPost.setConfig(requestConfig);
            List<NameValuePair> pairList = new ArrayList<NameValuePair>(params.size());
            for (Map.Entry<String, Object> entry : params.entrySet()) {
                NameValuePair pair = new BasicNameValuePair(entry.getKey(), entry
                        .getValue().toString());
                pairList.add(pair);
            }
            httpPost.setEntity(new UrlEncodedFormEntity(pairList, Charset.forName("utf-8")));
            response = httpClient.execute(httpPost);
            int statusCode = response.getStatusLine().getStatusCode();
            if (statusCode != HttpStatus.SC_OK) {
                return null;
            }
            HttpEntity entity = response.getEntity();
            if (entity == null) {
                return null;
            }
            httpStr = EntityUtils.toString(entity, "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (response != null) {
                try {
                    EntityUtils.consume(response.getEntity());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return httpStr;
    }

    /**
     * 发送 SSL POST 请求（HTTPS），JSON形式
     *
     * @param apiUrl API接口URL
     * @param json   JSON对象
     * @return
     */
    public static String doPostSSL(String apiUrl, Object json) {
        CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(createSSLConnSocketFactory()).setConnectionManager(connMgr).setDefaultRequestConfig(requestConfig).build();
        HttpPost httpPost = new HttpPost(apiUrl);
        CloseableHttpResponse response = null;
        String httpStr = null;

        try {
            httpPost.setConfig(requestConfig);
            StringEntity stringEntity = new StringEntity(json.toString(), "UTF-8");//解决中文乱码问题
            stringEntity.setContentEncoding("UTF-8");
            stringEntity.setContentType("application/json");
            httpPost.setEntity(stringEntity);
            response = httpClient.execute(httpPost);
            int statusCode = response.getStatusLine().getStatusCode();
            if (statusCode != HttpStatus.SC_OK) {
                return null;
            }
            HttpEntity entity = response.getEntity();
            if (entity == null) {
                return null;
            }
            httpStr = EntityUtils.toString(entity, "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (response != null) {
                try {
                    EntityUtils.consume(response.getEntity());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return httpStr;
    }

    /**
     * 创建SSL安全连接
     *
     * @return
     */
    private static SSLConnectionSocketFactory createSSLConnSocketFactory() {
        SSLConnectionSocketFactory sslsf = null;
        try {
            SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {

                public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
                    return true;
                }
            }).build();
            sslsf = new SSLConnectionSocketFactory(sslContext, new X509HostnameVerifier() {

                @Override
                public boolean verify(String arg0, SSLSession arg1) {
                    return true;
                }

                @Override
                public void verify(String host, SSLSocket ssl) throws IOException {
                }

                @Override
                public void verify(String host, X509Certificate cert) throws SSLException {
                }

                @Override
                public void verify(String host, String[] cns, String[] subjectAlts) throws SSLException {
                }
            });
        } catch (GeneralSecurityException e) {
            e.printStackTrace();
        }
        return sslsf;
    }


    /**
     * 测试方法
     *
     * @param args
     */
    public static void main(String[] args) throws Exception {
        String apiUrl = "http://10.17.36.97:80/api/umc/v1/fm/curalarms/insert";
        Date dateNow =  new Date();
        CurrentAlarmBean currentAlarmBean = new CurrentAlarmBean();
        currentAlarmBean.setAlarmkey("d427f7faa6054e2eba14e81038960eb36");
        currentAlarmBean.setAlarmraisedtime(dateNow);
        currentAlarmBean.setAlarmraisedtimeGmt(dateNow);
        currentAlarmBean.setServertime(dateNow);
        currentAlarmBean.setCommenttime(dateNow);
        currentAlarmBean.setAlarmsource("hw_UIM");
        currentAlarmBean.setAlarmtype(3);
        currentAlarmBean.setCode(1010);
        currentAlarmBean.setDatatype(0);
        currentAlarmBean.setDispproduct("string");
        currentAlarmBean.setId(315512260);
        currentAlarmBean.setMoc("nfv.alarm.vnf");
        currentAlarmBean.setOriginalperceivedseverity(1);
        currentAlarmBean.setPerceivedseverity(4);
        currentAlarmBean.setPosition1("d427f7faa6054e2eba14e81038960eb3");
        currentAlarmBean.setSystemtype(11);
        currentAlarmBean.setTimezoneoffset(0);
        currentAlarmBean.setAdditionaltext("Incorrect software configuration about VNFs");
        currentAlarmBean.setVisible(0);
        currentAlarmBean.setAckstate(2);
        currentAlarmBean.setPosition2("hw_UIM");

        currentAlarmBean.setAid("");
        currentAlarmBean.setAckuserid("");
        currentAlarmBean.setAcksystemid("");
        currentAlarmBean.setAcktime("");
        currentAlarmBean.setAckinfo("");
        currentAlarmBean.setSubposition1("string");
        currentAlarmBean.setSubname1("string");
        currentAlarmBean.setSubposition2("string");
        currentAlarmBean.setLink("string");
        currentAlarmBean.setNeip("string");
        currentAlarmBean.setStandardcause(0);
        currentAlarmBean.setReason(0);
        currentAlarmBean.setSpecificproblem("string");
        currentAlarmBean.setProduct1(0);
        currentAlarmBean.setProduct2(0);
        currentAlarmBean.setProduct3(0);
        currentAlarmBean.setProduct4(0);
        currentAlarmBean.setProduct5(0);
        currentAlarmBean.setProduct6(0);
        currentAlarmBean.setProduct7(0);
        currentAlarmBean.setProduct8(0);
        currentAlarmBean.setProduct9(0);
        currentAlarmBean.setTimezoneid("string");
        currentAlarmBean.setDstsaving(0);
        currentAlarmBean.setAlarmchangedtime("");
        currentAlarmBean.setCleartype(0);
        currentAlarmBean.setClearuserid("string");
        currentAlarmBean.setClearsystemid("string");
        currentAlarmBean.setAlarmclearedtime("");
        currentAlarmBean.setAlarmclearedtimeGmt("");
        currentAlarmBean.setCommenttext("string");
        currentAlarmBean.setCommentuserid("string");
        currentAlarmBean.setCommentsystemid("string");
        currentAlarmBean.setCustomattr1("string");
        currentAlarmBean.setCustomattr2("string");
        currentAlarmBean.setCustomattr3("string");
        currentAlarmBean.setCustomattr4("string");
        currentAlarmBean.setCustomattr5("string");
        currentAlarmBean.setCustomattr6("string");
        currentAlarmBean.setCustomattr7("string");
        currentAlarmBean.setCustomattr8("string");
        currentAlarmBean.setCustomattr9("string");
        currentAlarmBean.setCustomattr10("string");
        currentAlarmBean.setCustomattr11("string");
        currentAlarmBean.setCustomattr12("string");
        currentAlarmBean.setAdmc(0);
        currentAlarmBean.setReserve1("string");
        currentAlarmBean.setReserve2("string");
        currentAlarmBean.setReserve3("string");
        currentAlarmBean.setReserve4("string");
        currentAlarmBean.setReserve5("string");
        currentAlarmBean.setChangetrack("string");
        currentAlarmBean.setOmmid("string");
        currentAlarmBean.setPathid("string");
        currentAlarmBean.setPathname("string");
        currentAlarmBean.setAlarmreportcount(0);
        currentAlarmBean.setPlmn1(0);
        currentAlarmBean.setPlmn2(0);
        currentAlarmBean.setPlmn3(0);
        currentAlarmBean.setPlmn4(0);
        currentAlarmBean.setPlmn5(0);
        currentAlarmBean.setPlmn6(0);
        currentAlarmBean.setIspublic2plmn(0);
        currentAlarmBean.setEmsid("string");
        currentAlarmBean.setRelationflag(0);
        currentAlarmBean.setIsnaffilter(0);
        currentAlarmBean.setThresholdinfo("string");
        currentAlarmBean.setIntermittencecount(0);
        currentAlarmBean.setDebugstate(0);
        currentAlarmBean.setSortinfo("string");
        currentAlarmBean.setClearinfo("string");
        String json = new ObjectMapper().writeValueAsString(currentAlarmBean);
        System.out.println("string=" + json);
        int resultCode = HttpUtil.doPost(apiUrl, json);
        System.out.println("result=" + resultCode);
    }
}
